249236028 has 30 divisors (see below), whose sum is σ = 651553056. Its totient is φ = 83078568.

The previous prime is 249236023. The next prime is 249236059. The reversal of 249236028 is 820632942.

249236028 is a `hidden beast` number, since 2 + 49 + 2 + 3 + 602 + 8 = 666.

249236028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 249235983 and 249236001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249236023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 384300 + ... + 384947.

Almost surely, 2^249236028 is an apocalyptic number.

It is an amenable number.

249236028 is an abundant number, since it is smaller than the sum of its proper divisors (402317028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249236028 is a wasteful number, since it uses less digits than its factorization.

249236028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769263 (or 769252 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 249236028 is about 15787.2108999658. The cubic root of 249236028 is about 629.3181739153.

The spelling of 249236028 in words is "two hundred forty-nine million, two hundred thirty-six thousand, twenty-eight".